Suppose we want to override a function called foo in a base class called Bar, and we are writing a function foo for the derived class. As part of the function definition for foo in the derived class, we wish to call the function foo in the base class, which has no parameters. The expression to call the foo function in the base class (within a line of code) would look like this:

A. base::foo( )
B. Bar::foo( )
C. foo( )
D. Bar b.foo( )

B